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snow_lady [41]
2 years ago
6

I need help really bad please

Mathematics
1 answer:
yuradex [85]2 years ago
3 0

Answer:

9

Step-by-step explanation:

72 = 2^3 \cdot \boxed{3^2}

27 = 3 \cdot \boxed{3^2}

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Solve the expression x^2-100=0
enot [183]

Answer:

x = ± 10

Step-by-step explanation:

Given

x² - 100 = 0 ( add 100 to both sides )

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Find the largest prime divisor of 76^2 − 1.
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Answer:

11

Step-by-step explanation:

This is a difference of squares and therefore can be written as (76-1)(76+1)=(75)(77).

So lets look at the factors....

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77=7(11)

The biggest prime factor is therefore 11.

Identities used:

Difference of squares a^2-b^2=(a-b)(a+b)

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